B is Proxima Centauri, the ocean and the atmosphere may be suitable for life to survive (video) e2140

B is Proxima Centauri, the ocean and the atmosphere may be suitable for life to survive from earth of travel to neighboring planets in the newly discovered star! The latest research shows that B Proxima Centauri may be similar to earth’s oceans and atmosphere, with the potential for life conditions. Tencent space news according to the British Daily Mail reported that the French National Center for scientific research, a research team has calculated Proxima Centauri, the volume of B and surface properties, and concluded that this is a "marine earth like planets", with a thin atmosphere. In August this year, scientists claim that the future is expected to first B is Proxima Centauri extrasolar planet landed on earth, the planet in the habitable zone of Proxima Centauri, only 4 light-years from earth. It is about 1.3 times the mass of the earth, the distance of 7 million 500 thousand km orbit Proxima Centauri, this distance is 10 times the solar system inside the distance between the sun and mercury. The scientific research center of France said in a statement, B and Proxima before the expected difference, although it is very close to the star, but it does not mean that this planet is too hot, unable to maintain liquid water. Proxima Centauri is smaller than the sun, Proxima Centauri B and main stars to maintain an appropriate distance, the potential ability of livable life. Proxima B surface may have liquid water, and some forms of life. The latest study is published in the recently published astrophysical journal. The size of extrasolar planets from Earth’s perspective is usually measured when it passed over how many stars stars in front of the light is blocked, thus calculated, but has so far not observed Proxima Centauri B transits, so the research team must rely on simulated data, evaluation and analysis of components and the radius of the planet. Their calculations show that B is a star near the diameter of the diameter of the earth 0.94-1.4 times, an average of 6371 kilometers. Assuming a minimum diameter of 5990 km, the planet will be very dense, with a metal core, constituting a mass of about 2/3 of the planet’s mass, surrounded by a rocky mantle. If there is water on the surface, the surface quality of the planet will not exceed 0.05% of the total mass of the planet, the team said, it is similar to the earth, the surface water about the total mass of the planet about 0.02%. In a larger volume of assumptions, Proxima Centauri B diameter 8920 km, half of the planet’s mass is rocky core is half surrounded by liquid water. The French National Center for scientific research pointed out that the next star B is likely to be a 200 km deep ocean of liquid covered in the above two conditions, Proxima Centauri will surround around B thin atmosphere, like the earth’s atmosphere, it has the potential for life conditions. (long compile)相关的主题文章：